Efficient solutions to LeetCode problems using JavaScript
% column refers to the efficiency of the algorithm when compared to other submissions at the time of submission

• Algorithms
• Databases

Algorithms

Challenge	Difficulty	Solution (JS)	%	Solution (C#)	%
Baseball Game	Easy	solution.js	91.22%	solution.cs	96.83%
Binary Search	Easy			solution.cs	73.93%
Can Place Flowers	Easy	solution.js	100.00%	solution.cs	97.69%
Construct String from Binary Tree	Easy	solution.js	87.50%	solution.cs	86.36%
Convert BST to Greater Tree	Easy	solution.js	95.65%	solution.cs	100%
Count Odd Numbers in an Interval	Easy			solution.cs	87.88%
Detect Capital	Easy	solution.js	94.37%	solution.cs	95.70%
Find the Difference	Easy	solution.js	92.57%	solution.cs	95.91%
Find the Distance Value Between Two Arrays	Easy			solution.cs	71.43%
Fizz Buzz	Easy	solution.js	94.64%	solution.cs	97.29%
Flipping An Image	Easy	solution.js	N/A	solution.cs	93.75%
Flood Fill	Easy	solution.js	89.87%	solution.cs	97.86%
Guess Number Higher or Lower	Easy			solution.cs	97.00%
Hamming Distance	Easy	solution.js	96.69%
Happy Number	Easy	solution.js	86.24%	solution.cs	83.20%
Image Smoother	Easy	solution.js	100.00%	solution.cs	100.00%
Implement strStr()	Easy	solution.js	99.67%	solution.cs	81.67%
Intersection of Two Arrays	Easy	solution.js	98.82%	solution.cs	15.21%
Island Perimeter	Easy	solution.js	100.00%	solution.cs	100.00%
Jewels and Stones	Easy	solution.js	N/A	solution.cs	81.90%
Judge Route Circle	Easy	solution.js	99.86%
Keyboard Row	Easy	solution.js	69.07%
License Key Formatting	Easy	solution.js	94.57%	solution.cs	47.94%
Linked List Cycle	Easy	solution.js	82.01%	solution.cs	86.10%
Longest Continuous Increasing Subsequence	Easy	solution.js	98.79%	solution.cs	97.01%
Majority Element	Easy	solution.js	88.04%	solution.cs	94.07%
Maximum Depth of Binary Tree	Easy	solution.js	81.53%	solution.cs	86.62%
Merge Two Binary Trees	Easy	solution.js	93.19%	solution.cs	88.53%
Min Stack	Easy	solution.js	85.29%	solution.cs	97.84%
Nim Game	Easy	solution.js	87.74%	solution.cs	90.21%
Number Compliment	Easy	solution.js	100.00%	solution.cs	93.48%
Peak Index In A Mountain Array	Easy			solution.cs	85.18%
Power of Four	Easy	solution.js	95.56%	solution.cs	96.41%
Ransom Note	Easy	solution.js	80.00%	solution.cs	66.67%
Remove Element	Easy	solution.js	91.98%
Reshape the Matrix	Easy	solution.js	86.47%
Reverse Integer	Easy	solution.js	89.74%
Reverse String	Easy	solution.js	90.18%
Reverse Words in a String III	Easy	solution.js	86.00%
Binary Insert Position	Easy			solution.cs	78.22%
Set Mismatch	Easy	solution.js	87.00%
Single Number	Easy	solution.js	84.37%
Sqrt(x)	Easy	solution.js	92.28%	solution.cs	78.50%
Sum of Left Leaves	Easy	solution.js	96.43%
Toeplitz Matrix	Easy	solution.js	N/A
To Lower Case	Easy	solution.js	100.00%
Two Sum	Easy	solution.js	85.61%
Two Sum II - Input Array is Sorted	Easy	solution.js	98.86%
Two Sum IV - Input is a BST	Easy	solution.js	94.55%
Valid Parentheses	Easy	solution.js	98.42%
Valid Perfect Square	Easy	solution.js	98.94%	solution.cs	86.03%
3Sum	Medium	solution.js	91.50%
3Sum Closest	Medium	solution.js	89.12%
Add Two Numbers	Medium	solution.js	70.34%
Array Nesting	Medium	solution.js	N/A
Binary Tree Inorder Traversal	Medium	solution.js	78.09%
Counting Bits	Medium	solution.js	83.54%
Custom Sort String	Medium	solution.js	97.97%
Daily Temperatures	Medium	solution.js	N/A
Diagonal Traverse	Medium	solution.js	92.59%
Find All Duplicates in an Array	Medium	solution.js	85.16%
Find Bottom Left Tree Value	Medium	solution.js	91.80%
Find Largest Value in Each Tree Row	Medium	solution.js	94.37%
Find the Duplicate Number	Medium	solution.js	91.56%
Implement Magic Dictionary	Medium	solution.js	93.85%
Is Subsequence	Medium	solution.js	84.71%
Longest Substring Without Repeating Characters	Medium	solution.js	87.71%
Map Sum Pairs	Medium	solution.js	90.24%
Maximum Binary Tree	Medium	solution.js	85.19%
Move Zeros	Medium	solution.js	93.56%
Odd Even Linked List	Medium	solution.js	93.55%
Shuffle an Array	Medium	solution.js	93.55%
Single Element in a Sorted Array	Medium	solution.js	82.11%
Sort Characters By Frequency	Medium	solution.js	96.87%
Teemo Attacking	Medium	solution.js	93.55%
Top K Frequent Elements	Medium	solution.js	100.00%
Triangle	Medium	solution.js	100.00%
Valid Parenthesis String	Medium	solution.js	87.10%
Median of Two Sorted Arrays	Hard	solution.js	92.05%

Databases

Challenge	Difficulty	Solution	%
Big Countries	Easy	solution.sql	99.31%
Classes More Than 5 Students	Easy	solution.sql	90.24%
Combine Two Tables	Easy	solution.sql	84.95%
Delete Duplicate Emails	Easy	solution.sql	93.06%
Duplicate Emails	Easy	solution.sql	92.32%
Employees Earning More Than Their Managers	Easy	solution.sql	80.75%
Not Boring Movie	Easy	solution.sql	85.83%
Rising Temperature	Easy	solution.sql	82.55%
Second Highest Salary	Easy	solution.sql	99.25%
Swap Salary	Easy	solution.sql	99.80%
Consecutive Numbers	Medium	solution.sql	88.40%